Liner for centrifugal cream-separators.



PATENTED NOV. 26-, 1907.

. W. W.MARSH.

LINER FOR OBNTRIFUGAL CREAM SEPARATORS,

APPLICATION FILED APR. 8, 1907,

INVENTOR- wLZbur w.-JYLa,1-sh

'lTATEti UNITED Specification of Letters Patent.

ZPatented Nov. 26, 1907.

Application filed April 8.1907. Serial No. 367.015.

T 0 all whom it may concern:

Be it known that I, Winona W. hhnsn, a citizen of the United States 01'America, and a. resident of Waterloo, Blackhawk county, Iowa, haveinvented certain new and useful Improvements in Liners for QentrrlugalCream-Separators, of which the fol owing is a specification.

My invention relates to oehtri'lugal cream separators, and the object ofmy improvements. isto provide a liner capable of dividing the s acebetween the cream zone and the in er; periphery of the bowl intoconcentric of one of the laminal disks of the said liner,

of said bolt to after and Fi 3 is a plan View of said disk. i

Similar letters of reference refer to similar parts throughout theseveral views.

I have shown in Fig. 1 a separatonbowl (I of a well known type, having acover 71 secured thereon by means of a hollow clamping bolt 0, whoselower end is threaded to enter an interiorly threaded openingin the botl om ofuaid bowl. The upper lip or fillet of the clamping bolt 0contacts with the hollow neck of the conical cover I) to hold it inplace against the bowl when said bowl is screwed down into lace. Saidbolt has an axial opening (Z formmg an inlet tube for milk entering tobe sepalrated, exits e being rovided at the lower end communicationbetween the inlet ano the interior of the bowl near its bottom. I Theneck of the cover b has cream exits g and skimmed-milk exits 71., whilean inner cone f is removably set within and spaced away from the insideof said cover, its lower edge approaching the inner periphery of thebowl to afford an exit therebetween for the skimmed milk issuing fromthe liner. The upper end or neck of the inner cone f has a fillet wwhich contacts with the inner periphery of the neck of said coverbetween the cream exits g and the skimmed-milk exits IL. The spacebetween the inner periphery of the bowl and the cream zone near itsaxis, is lillod with a vertical series ol superposed lamina: orseparating devices, spaced apart, arranged as depicted in Fig. l. Eachscparating dcrice comprises an outer and an inner disk in the l'orm ol'truncated hollow cones, arrz'mgcd rcvcrscly with respect to each other,and connected by supporting strips p, openings 1/ being provided betweensaid. disks to permit the passage thcrcthrough oi the current ofascending separating milk. As shown, the outer disks l: are directeddmvnward at an angle of degrees with the axis of the bowl, while theinner disks in are directed upward at an angle 01' 15 degrees with saidaxis. 7

will be observed that when such separating devices are superposed, andspaced interspaccs s between the inner zone oi disks m are wider thanare the ii'itcrspaccs t be tween the disks l: of the outer zone of thebowl. ll not material, however, whether the angles of inclination of thesaid disks It: and m are the same as those shown toward the axis of thebowl, provided that the particular angles adopted .l'or the inner andouter disks of each separating device are dil lereut, and that thegreater angle is used in the inner series oi disks. This mode olarrangemcnt causes the,iutorspaces s to exceed the iulerspaces i in width.

the bowl through the exits c, an ascending current sols in, andseparation progresses, the cream seeking the cream zone, while theskimmed milk approaches the inner periphcry oi the bowl. As theseparating milk passes upward through the arc-shaprnl openings n in theycrliccs ol" the twopart scparating laminae km, the larger portion oithe cream separates in the wide interspacos s ol' the inner disks m andilows coinparativcly unobstructed to the cream zone between [lib inneredges oi said disks and the clampingbolt c, said cream then moving u'nvard and escaping from the bowl through the creamexits g. Thepartially skimmed milk, through the influence oi centrifugal force,moves outward through the narrow interspaces 25, finding coi'isiderabl ymore frictional surface interposed by means of the disks k, and beingsufliciently retarded to allow the minuter particles of creanr tocollect along such surl'aces and flow toward the cream zone. The outerzone 01 laminae 7: being apart by means of raised studs 0 thereon, the

'hen milk is sprayed into the interior of thus more closely spacedapart, more thorut little in the way of obstructing or col lootingsurface is naturally necessary.

As all the full milk ascends through the upwardly communicating openings12 which are in the neutral zone of the bowl and so arranged withrespect to each other as to provide a nearlyuninterrupted channel nomatter how the dividing laminae or inverted irusta 7cm are super osed,the cream in the cream zone about t 1e exterior leriphery of:

the inlet-tube d is undisturbed y such current of rising full milk. Thecream as it separates is free to move inwardly over the inverted vfrustam to such. cream zone. The connections p between the arc-shaped openings9'1 are so narrow as to not interrupt the ascending current of the fullmilk through such openings, even if the openings do not register in theascending series. The length of the said openings and their freedelivery into each other as aforesaid, prevents their becoming cloggedwith cream when the tempcrature has fallen through a certain number ofdegrees, but the full milk passing through said openings will by itscurrent scour the edges thereof and keep the access free.

Having described my invention, what I claim as new, and desire to secureby Let-ters- Patent ofthe United States, isp 1. A liner for acentrifugal cream sepa 'rator, composed of a vertical series ofsuperposed inner and outer concentric hollow irusta, each inner frustumbeing inverted with respect to its outer concentric frustum, and eachinner frustum being connected by harrow bands or connections to itsouter concentric irustum whereby a nearly uninterrupted, cylindricalconcentric channel is provided between the entire series of inner andouter irusta located in the neutral zone of the bowl.

2. A liner for a centrifugalcream sepaiator, composed of a verticalseries of-super-' and each inner frustum being connected by narrow bandsor connections to its outer concentric frustum whereby a nearlyuninterrupted cylindrical concentric channel is provided between theentire series of inner and outer frusta located in the neutral zone offrustum being separable from the frusta above and below them. i

3. A liner for a centrifu al cream separater, composed of a verticalseries of super- )osed inner and. outer concentric hollow i'rusta, eachinner frustum being inverten with respect to its outer concentricfrustum, and each inner frustum being connected by narrow bands orconnections to its outer concentric frustum whereby a nearlyuninterrupted cylindrical concentric channel is prowith respect to itsouter concentricfrustum, and the abutting edges of such concentricfrusta being joined by narrow connections so as to provide relativelylong arc-shaped opening's between such edges.

5. A liner for a centrifugal cream sepaposed inner and outer concentrichollow frusta, each inner frustum being inverted with espect to itsouter concentric frustum, the abutting edges of such concentric frustabeing joined by narrow connections so to provide relatively longarc-shaped openings between such edges, such openings being located inthe neutral zone of the bowl, and the outer frusta being arranged so asto be frusta are spaced apart.

Signed at Waterloo,

lowagthis 26th day ofMch. I907.

\Vitnesses G.C.KENNE1 )Y, 7.: I v- 'M. E. Knnxnmz.

the bowl, each inner and its outer connected frusta, each inner frustumbeing inverted spaced a less'distance apart than the inner vided betweenthe entire series of inner and rator, composed of a vertical series ofsuper WILBUR w. MARSH.

